The following ". jpg,.sh3d" document download
1. Need to installed "copy as new furniture"
http://www.sweethome3d.com/plugins/CopyAsNewFurniturePlugin-1.1.sh3p
2. Need to installed "AdvancedEditing” http://sourceforge.net/tracker/download.php?group_id=152568&atid=1127349&file_id=387709&aid=3066693
A1 The gable roof.jpg http://www.mediafire.com/?tmmx5t8jdaa4da1
A2 The gable roof.sh3d http://www.mediafire.com/?ru53a8das1npfgc

B1 the angle awl roof.jpg http://www.mediafire.com/?a76fqoyqquude3k
B2 the angle awl roof.sh3d http://www.mediafire.com/?b7upl4s63enf3k2

C1 conical roofs.jpg http://www.mediafire.com/?bd36lcc458q7y9q
C2 conical roofs.sh3d http://www.mediafire.com/?2d97l8poho9bk55

D1 round roof.jpg http://www.mediafire.com/?wz0qm7w7eib01z3
D2 round roof.sh3d http://www.mediafire.com/?zifk85agxay2ofr

If you don't mind, following traditional Chinese movie and "PDF" document download
3. Need to installed "youTube downloader” http://www.microsofttranslator.com/bv.aspx?from=&to=zh-CHT&a=http%3A%2F%2Fwww.youtubedownloaderhd.com%2Ffiles%2Fyoutube_downloader_hd_setup.exe

A3 The gable roof- youTube file http://www.youtube.com/watch?v=eLYrNrgXY3U
A4 The gable roof.pdf http://www.mediafire.com/?wovrr48s8st4ua7

B3 the angle awl roof youTube file http://www.youtube.com/watch?v=15-Nev0GfDw
B4 the angle awl roof.pdf http://www.mediafire.com/?smaqc7e3usf9ai0

C3 conical roofs youTube file http://www.youtube.com/watch?v=V0WbfMQ8hEU
C4 conical roofs youTube file http://www.mediafire.com/?3467rl8753n41v9

D3 round roof youTube file http://www.youtube.com/watch?v=vT3XCRPLZuk
D4 round roof.pdf http://www.mediafire.com/?bjdfsra7bz4swjp